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包延迟 : 30 phrases in 11 subjects |
| Air defense | 4 |
| Aviation | 1 |
| Earth sciences | 1 |
| Electronics | 4 |
| Geophysics | 1 |
| Information technology | 2 |
| Multimedia | 1 |
| Piezoelectric crystals | 2 |
| Space | 2 |
| Technology | 9 |
| Telecommunications | 3 |
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